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Finding the Fourth Proportional to 527,309.92, 790,958.28 and 127,954

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Solution

The fourth proportional to 527,309.92, 790,958.28 and 127,954 is: 191,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,309.92 : 790,958.28 = 127,954 : x
  2. Step 2: Convert to fraction form
    527,309.92/790,958.28 = 127,954/x
  3. Step 3: Cross multiply
    527,309.92x = 790,958.28 × 127,954
  4. Step 4: Simplify right side
    527,309.92x = 101,206,275,759.12
  5. Step 5: Solve for x
    x = 101,206,275,759.12/527,309.92
  6. Step 6: Final answer
    x = 191,929.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.